A cone-shaped grain with a bottom circumference of 12.56m.5m is piled into a cylindrical granary with a bottom diameter of 2m How high is the columnar granary
r=12.56÷3.14÷2=2(m)
(1/3×2×2×3.14×1.5)÷[(2÷2)×3.14]
=6.28÷3.14
=2(m)
Choose me, choose me!
RELATED INFORMATIONS
- 1. A granary has a cone on the top and a cylinder on the bottom with a circumference of 62.8cm and a height of 4m and 5m. How many tons can it hold? It weighs 750KG per cubic meter
- 2. In one corner of the warehouse, there is rice, a quarter cone, with a bottom arc length of 1.57 meters and a cone height of 2.4 meters. A cubic meter of rice is 725 kg. What's the weight of this pile of rice Within ten minutes, 50. Oh, I'll give you after answering. I have plenty!
- 3. A conical grain pile, 2 meters, covers an area of 16 square meters. Put this pile of grain into the granary, which is exactly two seventh of the volume of the granary. What's the volume of the granary
- 4. A cone-shaped grain pile is 1.5 meters high, covering an area of 16 square meters. This pile of grain is put into the granary, accounting for just two fifths of the granary Find the volume of this granary
- 5. Each classroom is 8 meters long, 6 meters wide and 3.5 meters high. The area of the blackboard with doors and windows is 25 square meters. What is the area of painting around the classroom and the ceiling
- 6. 3m-2n=11,4m-n=-1 Five minutes!
- 7. How many days does it take for a snail to climb a 7m bamboo pole, 4m in the daytime and 3M in the evening?
- 8. A carpet is 8 meters long and 5 meters wide. If the area of the rectangular pattern in the center of the carpet is 18 square meters, how wide is the lace
- 9. There is a rope and a bamboo pole. When the rope is folded in half, it is 2 meters longer than the bamboo pole. When the rope is folded in four, it is 2 meters shorter than the bamboo pole. How long are the bamboo pole and the rope?
- 10. With a piece of wire, you can make a cuboid frame 7 cm long, 6 cm wide and 5 cm high If you use this piece of wire to make a cube frame, what is the volume of the cube? We need formulas and expressions. Example: S = A & sup2; × 6
- 11. The circumference of the bottom of a cylinder is three times that of a cone, and the height of a cylinder is one sixth of that of a cone Q: the volume of this cylinder is () times that of this cone
- 12. The height of the cone is 0.6 meters, the height of the lower cylinder is 1.6 meters, the diameter is 2 meters, and the weight of rice per cubic meter is 550 kg 3000 kg, can it hold?
- 13. There is a conical sand pile on the construction site, which is 0.9 meters high and 12.56 meters long. The weight of each cubic meter of sand is about 1.7 tons. How many tons does this pile of sand weigh? (the total amount is reserved for the whole ton)
- 14. A cone tool used by construction workers is made of steel. Its bottom circumference is 12.56 cm and its height is 6 cm. If the steel weighs 7.8 g per cubic centimeter, how many kg does the tool weigh?
- 15. The volume of a cone is 12.56 cubic DM, the perimeter of its bottom surface is 6.28 DM, and the height of the cone is 1?
- 16. The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 centimeters. What is its volume cubic decimeters 1. The circumference of the bottom surface of a cone is 12.56 decimeters, and its height is 20 cm. What is its volume cubic decimeters? 2. The bottom radius of the cone is 3cm and the volume is 6.28cm3. What is the height of the cone 3. A cylindrical bucket without cover, with a bottom radius of 5 decimeters and a height of 8 decimeters, at least how much iron sheet does it need to make this bucket? 4. Dig a cylindrical pool with a bottom radius of 4 meters and a depth of 3 meters. Put cement on the ground and four walls. What is the area of cement? If 350 kg of water is used per square decimeter (note unit), how many kg of cement is shared? 5. Unfold the side of a cylinder to get a 15.7 cm square. What is the surface area of the cylinder? 6. The volume sum of a cylinder and a cone with equal base and height is 96 cubic centimeters. What are the volumes of the cylinder and the cone? 7. After a cube container with 4 decimeters long edge is filled with water, pour it into a cone with a bottom area of 12 square decimeters. What's the height of the cone
- 17. A cylindrical steel with a bottom diameter of 6 decimeters and a height of 4 decimeters is melted and cast into a cone with a bottom area of 12.56 square decimeters. What is the height of the cone?
- 18. The circumference of the bottom surface of a cone is 12.56 cm, and its volume is 37.68 cubic cm. How many square cm is the bottom area of a cone, and how high is it?
- 19. The circumference of the bottom surface of a cone is 12.56 cm and the height is 9 cm. The volume of this cone is______ Cubic centimeter
- 20. The circumference of the bottom surface of a cone is 12.56 cm and the height is 8 cm. Cut it into two equal halves from the top along the height, and the surface area increases by () square cm